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2 * Licensed to the Apache Software Foundation (ASF) under one *
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5 * regarding copyright ownership. The ASF licenses this file *
6 * to you under the Apache License, Version 2.0 (the *
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10 * http://www.apache.org/licenses/LICENSE-2.0 *
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12 * Unless required by applicable law or agreed to in writing, *
13 * software distributed under the License is distributed on an *
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
15 * KIND, either express or implied. See the License for the *
16 * specific language governing permissions and limitations *
17 * under the License. *
18 ****************************************************************/
19
20
21
22 package org.apache.james.smtpserver.core;
23
24 import java.util.ArrayList;
25 import java.util.Collection;
26
27 import org.apache.james.dsn.DSNStatus;
28 import org.apache.james.smtpserver.CommandHandler;
29 import org.apache.james.smtpserver.SMTPSession;
30
31 /**
32 * Handles QUIT command
33 */
34 public class QuitCmdHandler implements CommandHandler {
35
36 /**
37 * The name of the command handled by the command handler
38 */
39 private final static String COMMAND_NAME = "QUIT";
40
41 /**
42 * handles QUIT command
43 *
44 * @see org.apache.james.smtpserver.CommandHandler#onCommand(SMTPSession)
45 */
46 public void onCommand(SMTPSession session) {
47 doQUIT(session, session.getCommandArgument());
48
49 }
50
51
52 /**
53 * Handler method called upon receipt of a QUIT command.
54 * This method informs the client that the connection is
55 * closing.
56 *
57 * @param session SMTP session object
58 * @param argument the argument passed in with the command by the SMTP client
59 */
60 private void doQUIT(SMTPSession session, String argument) {
61
62 String responseString = "";
63 if ((argument == null) || (argument.length() == 0)) {
64 session.getResponseBuffer().append("221 "+DSNStatus.getStatus(DSNStatus.SUCCESS,DSNStatus.UNDEFINED_STATUS)+" ")
65 .append(session.getConfigurationData().getHelloName())
66 .append(" Service closing transmission channel");
67 responseString = session.clearResponseBuffer();
68 } else {
69 responseString = "500 "+DSNStatus.getStatus(DSNStatus.PERMANENT,DSNStatus.DELIVERY_INVALID_ARG)+" Unexpected argument provided with QUIT command";
70 }
71 session.writeResponse(responseString);
72 session.endSession();
73 }
74
75 /**
76 * @see org.apache.james.smtpserver.CommandHandler#getImplCommands()
77 */
78 public Collection getImplCommands() {
79 Collection implCommands = new ArrayList();
80 implCommands.add("QUIT");
81
82 return implCommands;
83 }
84 }
85
86
87